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Titolo:
CT ANGIOGRAPHY TO DETERMINE THE SIZE OF INTRACRANIAL ANEURYSMS PRIOR TO GDC THERAPY
Autore:
JANSEN O; BRAKS E; HAHNEL S; SCHRAMM T; SARTOR K;
Indirizzi:
RUPRECHT KARLS UNIV HEIDELBERG,ABT NEURORADIOL,NEUENHEIMER FELD 400 D-69120 HEIDELBERG GERMANY RUPRECHT KARLS UNIV HEIDELBERG,ABT KLIN RADIOL D-69120 HEIDELBERG GERMANY
Titolo Testata:
RoFo. Fortschritte auf dem Gebiete der Rontgenstrahlen und der neuenbildgebenden Verfahren
fascicolo: 2, volume: 169, anno: 1998,
pagine: 175 - 181
SICI:
0936-6652(1998)169:2<175:CATDTS>2.0.ZU;2-E
Fonte:
ISI
Lingua:
GER
Soggetto:
ARTERIOVENOUS-MALFORMATIONS; ENDOVASCULAR TREATMENT; CLINICAL-EXPERIENCE; SACCULAR ANEURYSMS; DETACHABLE COILS; SPIRAL CT; ELECTROTHROMBOSIS;
Keywords:
SPIRAL COMPUTED TOMOGRAPHY; CEREBRAL ARTERIAL ANEURYSMS; CT ANGIOGRAPHY; GDC THERAPY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
O. Jansen et al., "CT ANGIOGRAPHY TO DETERMINE THE SIZE OF INTRACRANIAL ANEURYSMS PRIOR TO GDC THERAPY", RoFo. Fortschritte auf dem Gebiete der Rontgenstrahlen und der neuenbildgebenden Verfahren, 169(2), 1998, pp. 175-181

Abstract

Objective: To examine in a model and in clinical practice whether CT angiography (CTA) is suitable to determine the size of intracranial aneurysms. Methods: For an aneurysm model the contrast medium-filled balloon of an occlusion catheter was used. At different levels of fillingimages were obtained by both CTA and digital subtraction angiography (DSA). In the CT image the size of the simulated aneurysm was calculated from the CTA data at the workstation while from the DSA images it was performed by the DSA system with the use of both an external reference structure (two-ring method) and a stereotactic system (ANGIOLOG(R)). In 7 patients, the size of the aneurysm was determined by CTA and DSA prior to aneurysm occlusion by means of guglielmi detachable coils (CDC therapy). Results: On the basis of 2 D reconstructions of the CT average size deviations in the XY plane of 1.6% and on the Z axis of 3.2% were determined. These errors increased to 3.4% (XY plane) and 5.6% (Z axis) with 3 D reconstructions. By use of the two-ring model, DSAgave an average size deviation of 3 % while with the stereotactic system (ANGIOLOG (R)) it was as high as 11%. In 6 of the 7 patients, the appropriate spiral size was chosen primarily after CTA measurements. Conclusions: CTA enables the reliable determination of the size of an intracranial arterial aneurysm and in individual cases can give a better representation of an anatomic situation at the base of an aneurysm than DSA. Thus, CTA imaging of an aneurysm prior to CDC therapy is useful.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 15:38:14